Pyrolysis of oil-based drill cuttings from shale gas field: Kinetic, thermodynamic, and product properties

•Pyrolysis of oil-based drill cuttings was studied by TGA and fixed-bed reactor.•The reaction model of oil-based drill cuttings pyrolysis depends on the degree of conversion.•High heating rate was preferentially selected to predict the reaction mechanism.•500℃ was considered the optimum temperature for oil recovery from oil-based drill cuttings pyrolysis.•Possible reaction pathways during oil-based drill cuttings pyrolysis were proposed.